It should be stated why we might need to consult international treaties related to air quality in engineering designs if we were engineers working on a project to be built in Detroit area. Concept introduction: Some authorities require air permits for sources of pollution like construction of a plant or a building.. There are some guidelines to be followed for obtaining those permits. Degradation of building materials like construction metallic materials, concrete structures and plasters of buildings, bridges are related to the atmospheric condition. Pollutants in atmosphere can cause chemical and physical changes to the materials used for the construction purpose which will deteriorate the quality of the buildings and other construction work.

Question

The world burns approximately 3.7 * 1012 kg of fossil fuel per year. Use the combustion of octane as the representative reaction and determine the mass of carbon dioxide (the most significant greenhouse gas) formed per year. The current concentration of carbon dioxide in the atmosphere is approximately 399 ppm (by volume). By what percentage does the concentration increase each year due to fossil fuel combustion? Approximate the average properties of the entire atmosphere by assuming that the atmosphere extends from sea level to 15 km and that it has an average pressure of 381 torr and average temperature of 275 K. Assume Earth is a perfect sphere with a radius of 6371 km.

Answer 1

Question

Chapter 11, Problem 11.77PAE

Interpretation Introduction

Interpretation:

It should be stated why we might need to consult international treaties related to air quality in engineering designs if we were engineers working on a project to be built in Detroit area.

Concept introduction:

Some authorities require air permits for sources of pollution like construction of a plant or a building.. There are some guidelines to be followed for obtaining those permits.

Degradation of building materials like construction metallic materials, concrete structures and plasters of buildings, bridges are related to the atmospheric condition.

Pollutants in atmosphere can cause chemical and physical changes to the materials used for the construction purpose which will deteriorate the quality of the buildings and other construction work.

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The world burns approximately 3.7 * 1012 kg of fossil fuel per year. Use the combustion of octane as the representative reaction and determine the mass of carbon dioxide (the most significant greenhouse gas) formed per year. The current concentration of carbon dioxide in the atmosphere is approximately 399 ppm (by volume). By what percentage does the concentration increase each year due to fossil fuel combustion? Approximate the average properties of the entire atmosphere by assuming that the atmosphere extends from sea level to 15 km and that it has an average pressure of 381 torr and average temperature of 275 K. Assume Earth is a perfect sphere with a radius of 6371 km.

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